SINOU spray column, also known as empty tower spray scrubber, abandons the traditional internal filler layout and adopts hollow tower body + multi-layer swirling atomizing nozzle innovative structure. This gas purification tower is independently developed to solve cement dust, alkaline flue gas blockage troubles generated during the CO₂ neutralization reaction of concrete batching plant wastewater.
When the waste gas containing fine desert sand dust enters the tower, circulating neutralization liquid forms dense mist to absorb alkaline components and trap dust particles. The purified gas reaches emission standards, while the waste liquid flows back to the water treatment station for cyclic reuse.
The whole set can form a complete gas-water closed-loop treatment system when matched with HDPE Slurry Pipe, Chamber Filter Press and Heavy Duty Mixer Truck Washing Machine.
Many clients wonder how the spray column achieves high purification efficiency without internal fillers, its core counter-current process has 6 continuous operation steps:
(1) Dust-containing alkaline flue gas enters from the tangential air inlet at the tower bottom, and the rotating air flow initially separates large cement particles to reduce nozzle clogging risk
(2) The gas flows upward along the hollow tower cavity without filler obstruction, with extremely low wind resistance loss
(3) Multi-layer swirl atomizing nozzles at the upper part of the tower spray neutralizing liquid downwards to form countless tiny liquid droplets
(4) Upward flue gas and downward mist fully collide and contact, alkaline substances chemically react with neutral liquid, and fine dust is wrapped and captured by droplets
(5) The purified clean gas passes through a folded plate mist eliminator at the tower top to intercept entrained water mist before being discharged
(6) The mixed waste liquid carrying dust flows into the bottom liquid storage tank, and the circulation pump sends it back to the Carbon Neutrality Waste Water System through HDPE Slurry Pipe for sedimentation and re-spraying The PLC system links the PH detector to automatically adjust the spray liquid supply volume according to flue gas alkalinity, requiring no manual real-time adjustment.
All parts of SINOU spray column adopt split flange connection design, convenient for sea freight transportation and on-site assembly; all wetted components are anti-corrosion treated to adapt long-term alkaline dust working conditions:
(1) Main Split Tower Body: Optional PP, FRP or 304 stainless steel materials, segmented flange splicing to reduce single-piece transportation volume
(2) Tangential Dust Separation Air Inlet: Spiral air intake structure to pre-settle large cement slag and avoid direct impact on nozzles
(3) Multi-layer Swirl Atomization Nozzle Group: Large-diameter flow channel design, not easy to be blocked by 100μm desert fine sand
(4) V-type Folded Plate Mist Eliminator: Installed at the tower outlet to eliminate liquid mist entrainment and prevent secondary water mist emission
(5) Integrated Bottom Liquid Storage Chamber: Equipped liquid level transmitter to realize pump start-stop linkage control
(6) Side Inspection Manholes & Transparent Observation Windows: Reserve maintenance ports for regular nozzle cleaning without disassembling the whole tower
(7) External Independent Circulation Pump Unit: Separated layout outside the tower, easy maintenance and pump replacement
(1) Filler-free Hollow Tower Core Design: Fundamentally eliminate the common failure that traditional filled towers are blocked by cement fine sand, greatly extend the maintenance cycle
(2) Swirl Large Flow Nozzles: Compared with ordinary straight nozzles, the anti-clogging performance is increased by more than 70%, adapting Middle East desert sand working conditions
(3) Multiple Corrosion-resistant Material Options: Flexible matching tower materials according to different alkalinity of flue gas, long service life under high alkali environment
(4) Low Wind Resistance Energy-saving Structure: No filler to block airflow, fan power consumption reduced by nearly 30% compared with filled towers
(5) Modular Split Transportation: The tower is divided into multiple small sections, which can be loaded into standard containers to cut ocean freight costs
(6) Intelligent Linked Spraying System: Real-time PH signal feedback automatically adjusts liquid supply to save neutralizer consumption
(7) Full Line Matching Compatibility: Can be seamlessly connected with Chamber Filter Press and Heavy Duty Mixer Truck Washing Machine to build integrated mixing plant environmental protection equipment set
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Model Code |
Air Handling Volume (m³/h) |
Tower Outer Diameter |
Matching Circulation Pump Power |
Nozzle Layers |
Matching Batching Plant Scale |
|
SC-6K |
6000 |
Φ1300mm |
2.2kW |
2 |
Small mixing station |
|
SC-12K |
12000 |
Φ1600mm |
3.0kW |
3 |
Medium single-line mixing plant |
|
SC-18K |
18000 |
Φ1900mm |
3.0kW |
3 |
Large double-line mixing plant |
|
SC-24K |
24000 |
Φ2100mm |
4.0kW |
4 |
Centralized aggregate recycling base |
|
SC-32K |
32000 |
Φ2600mm |
5.5kW |
4 |
Super large multi-production line yard |
Many engineering purchasers cannot distinguish spray columns and filled towers, four core selection standards sorted for your reference:
(1) Calculate total flue gas output of wastewater reaction tank and truck washing area to confirm required air handling volume
(2) Prioritize filler-free spray column if the flue gas carries a large amount of cement and desert fine sand
(3) Select corresponding tower material according to long-term flue gas PH value Complete environmental protection line configuration needs to reserve installation space matched with HDPE Slurry Pipe and sludge filter press
|
Comparison Dimension |
SINOU Filler-free Spray Column |
Traditional Filled Gas Washing Tower |
|
Internal Structure |
Hollow tower, no filler media |
Full of plastic/ceramic packing layers |
|
Blockage Probability |
Extremely low, large flow swirl nozzles |
Very high, fine sand blocks filler gaps easily |
|
Running Wind Resistance |
Low, fan power consumption small |
High, long-term electricity cost higher |
|
Maintenance Frequency |
Only regular nozzle flushing, low workload |
Need to clean/replace filler frequently |
|
Dust Adaptability |
Perfect for cement desert sand flue gas |
Only suitable for clean low-dust waste gas |
|
Long-term Operation Cost |
Low energy & low maintenance expenditure |
High consumable replacement expense |
|
Transportation Form |
Split modular, convenient container loading |
Integrated whole tower, high sea freight |
When purchasing SINOU spray column, we provide a full set of supporting environmental equipment solutions, click the names below to jump to corresponding product pages:
(1) HDPE Slurry Pipe: PE100 wear-resistant pipeline for circulating spray liquid delivery
(2) Chamber Filter Press: Process sludge sediment separated from spray circulation liquid
(3) Heavy Duty Mixer Truck Washing Machine: Supporting front-end vehicle cleaning flue gas collection
(4) Carbon Neutrality Waste Water System: Provide neutralizing circulating liquid source for spray column
(1) Ready-mix concrete batching plants
(2) Mining aggregate processing yards dust flue gas purification
(3) Municipal small chemical workshop alkaline mist treatment
(4) Saudi Arabia, UAE desert construction mixing plant environmental renovation projects
(5) Building material factory cement powder waste gas recovery
A: Our equipment cancels filler layers and adopts tangential air inlet for preliminary dust separation, plus large-flow swirl nozzles. Daily simple water flushing can avoid blockage effectively.
A: All supporting pumps and control electrical parts support dual frequency 50/60Hz, with voltage stabilization design for unstable generator current.
A: Three optional materials: PP for weak alkali working conditions, FRP universal anti-corrosion type, 304 stainless steel for long-term strong alkali high temperature environment.
A: The waste liquid after dust capture flows back to the neutralization water station for PH adjustment and sedimentation, realizing closed-loop recycling without random discharge.
A: A V-type folded plate mist eliminator has good anti-adhesion performance, only regular high-pressure flushing is needed, the replacement cycle can reach more than 1 year.
① Check atomization status of each layer of nozzles, clean surface dust if blocked
② Observe circulation pump's running sound and liquid level data of tower bottom storage tank
③ Check whether the mist eliminator at the outlet accumulates mud and blocks airflow
① Tighten all tower flange and pipeline connecting fasteners
② Wipe the surface of PH liquid level probe to ensure accurate data feedback
③ Fully flush all internal nozzles with clean water to prevent sand silt accumulation
① Open the side manhole to clean residual cement dust inside the tower cavity
② Inspect circulation pump sealing ring for aging and water leakage
③ Test automatic liquid level interlock and alarm protection functions
① Replace aging pipeline and nozzle sealing accessories
② Comprehensive inspection of tower body for corrosion and wear
① Disassemble and clean the mist eliminator assembly thoroughly
② Overall inspection and debugging of electrical control cabinet
① Swirl atomizing nozzle: 8~10 months;
② PH detection probe: 12 months;
③ pump sealing ring: 6~8 months
(1) Air Volume Customization: Adjust tower diameter and nozzle layers according to customer actual flue gas output
(2) Material Customization: Switch PP/FRP/stainless steel tower body according to waste gas alkalinity
(3) Function Customization: Add pipeline electric heat tracing for low-temperature northern sites
(4) Brand OEM: Print customer exclusive LOGO on tower outer wall
(5) Electrical Customization: Adapt special voltage and frequency standards for various countries
(1) Packing Scheme: Split tower sections wrapped with waterproof plastic film + fixed export wooden frame; precision sensors and control boxes are packed in independent moisture-proof wooden cases
(2) Applicable Trade Terms: EXW, FOB, CFR, CIF, DAP
(3) Logistics Cooperation: Long-term cooperation with stable international freight forwarders, delivery to Europe, Middle East, Southeast Asia and Africa
(4) Container Optimization: Split design saves container space, can be mixed loaded with HDPE pipe and filter press to reduce overall shipping cost
(1) Product Certifications: CE, ISO9001, ISO14001 international standard certificates, complete factory test reports for overseas bidding and customs clearance
(2) Warranty Regulation: 1-year full warranty for spray column main body and supporting pumps
(3) Global After-sales Service: 7×24 multilingual remote video guidance, overseas on-site installation and commissioning training available